Vecna is a powerful archlich known to some as the Undying King, the Whispered One, and the Master of the Spider Throne. Vecna studied the dark arts from childhood at the knee (or under the boot heel) of his cruel hedge witch mother. Unshackled from the bounds of time and space, Vecna's terrible touch may be as inevitable as death itself.
The archlich's withered hand, also unstuck from time, is a legendarily powerful artifact that grants its bearer terrible necromantic abilities at the cost of the bearer's own hand and eventually at the cost of their life.
While awaiting the inevitable end of all things in Vecna's wrinkled gray clutches, one might as well enjoy this deliciously smoky and potentially sacrilegious cocktail, created either in tribute to a dastardly figure or as a rebuke to a sinister bogeyman.